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Photocatalytic Degradation of Methyl Orange Using Doped Titanium Dioxide Coating

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Abstract:

Titanium dioxide (TiO2) coating was prepared through dipping stainless steel net into titanium dioxide sol and then extracting it. The photocatalytic activities for all titanium dioxide coatings were tested by methyl orange degradation under ultraviolet and visible light irradiation. The photo-absorption property was determined by UV-Vis spectrophotometer. The titanium dioxide coating is photo-catalytically reactive for the degradation of methyl orange. The photo-catalytic activity is influenced by extraction times, degradation time, doping element and light source. La-doped titanium dioxide exhibits the best photocatalytic activity in comparison with undoped, V-doped and La-V-codoped ones. The degradation rate of methyl orange by La-doped titanium dioxide coating reaches 92% after 70 minutes irradiation under ultraviolet light.

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Periodical:

Advanced Materials Research (Volumes 955-959)

Pages:

112-115

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.955-959.112

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Online since:

June 2014

Authors:

Li Wang*, Dong Mei Jia, Zeng Qiang Zhao

Keywords:

Dip-Coating, La-doping, Methyl Orange, Photocatalytic Degradation, Titanium Dioxide

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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